Home / 321,067.06-481,562.30-84,428.19

Finding the Fourth Proportional to 321,067.06, 481,562.30 and 84,428.19

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Solution

The fourth proportional to 321,067.06, 481,562.30 and 84,428.19 is: 126,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,067.06 : 481,562.30 = 84,428.19 : x
  2. Step 2: Convert to fraction form
    321,067.06/481,562.30 = 84,428.19/x
  3. Step 3: Cross multiply
    321,067.06x = 481,562.30 × 84,428.19
  4. Step 4: Simplify right side
    321,067.06x = 40,657,433,572.31
  5. Step 5: Solve for x
    x = 40,657,433,572.31/321,067.06
  6. Step 6: Final answer
    x = 126,632.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.